The problems I have is that I can't defeat all the gnomes who swarm around you as soon as you enter. The sword I use (my best) is the claymore of snow which I like because it freezes the enemy for about 5 seconds whilst doing about 100 damage each time.
I used a two-hands sword with frost just like you.
If your char is a warrior you can use the special skill of the warrior for making more dammage.
You can drink some strength potions before the fight and life potions during the fight.
You can use steel scorpions.
And you can search in the forum with the word "Josephina", there are a lot of great topics about how defeating Josephina.
Chasing Josie Barta